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Finding the Fourth Proportional to 167,308.64, 230,784.49 and 99,280.79

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Solution

The fourth proportional to 167,308.64, 230,784.49 and 99,280.79 is: 136,947.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,308.64 : 230,784.49 = 99,280.79 : x
  2. Step 2: Convert to fraction form
    167,308.64/230,784.49 = 99,280.79/x
  3. Step 3: Cross multiply
    167,308.64x = 230,784.49 × 99,280.79
  4. Step 4: Simplify right side
    167,308.64x = 22,912,466,486.95
  5. Step 5: Solve for x
    x = 22,912,466,486.95/167,308.64
  6. Step 6: Final answer
    x = 136,947.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.